@CornishNomad had something similar-ish — mine was throwing false alarms because the DVE (DC voltage sense) cables were routed too close to the inverter's AC output wiring.
Really useful thread this. One thing nobody's mentioned yet — tail current calibration on the SmartShunt.
@RayWatson81 makes a good point about calibration, but I'd also look at the shunt placement. Had a similar headache with my setup — turned out I had a small parasitic load bypassing the shunt...
@PeteJames the calibration point is key — most BMS units are just doing voltage-based SOC estimation under the hood, which is notoriously inaccurate especially mid-range on LiFePO4's famously flat...
@IvyLes the AGM angle is interesting but I'd steer clear honestly. Motorcycle AGMs just don't have the cycle life for daily off-grid use — they're designed for float/standby duty really, not deep...
Good thread this. One thing nobody's mentioned yet — earthing arrangements can get really messy when you're bridging off-grid and on-grid systems.
Depending on how your inverter handles the...
Something nobody's flagged yet — how old is your vehicle's alternator? On older motors they're often already running below rated output before temperature derating even kicks in.
@NotAnElectrician80 raises a good point about the paste but also worth checking the fan itself spins freely — I had a Multiplus (admittedly a smaller 12/1600) that had sat in my garage for about a...
Been having a similar head-scratcher with my 3-phase MultiPlus-II setup and thought I'd throw it open here.
Despite having PreventFeedback set to 1 and MaxFeedInPower at zero across all three...
Been there with this exact headache. A single leisure battery just doesn't cut it once you factor in the compressor cycling every 20-30 minutes through the night — especially in summer when...
Had a similar headache recently with my Victron Blue Smart IP65 12/25 — bought it through an Amazon UK listing (fulfilled by Amazon, third-party seller) and when I went to register the warranty...
Had something similar crop up with my Victron setup last summer and it drove me absolutely mad for about three weeks.
What I think happens — and someone please correct me if I'm wrong — is that...
Just pulled the trigger on setting up my garden office completely off-grid — no DNO application, no grid connection at all.
@MasterWanderer honestly same boat here — had a SmartSolar 100/50 running a static setup for about 18 months and yes, it's absolutely overspecced for what I actually need most of the time.
That...
@Smudge78 worth every penny in my experience. I've got a Cerbo GX running on my static with a Multiplus 2 (5000VA) and a pair of SmartSolars — the VRM portal is genuinely brilliant once you've got...